65647145275 has 12 divisors (see below), whose sum is σ = 82192778512. Its totient is φ = 52007833440.

The previous prime is 65647145273. The next prime is 65647145281. The reversal of 65647145275 is 57254174656.

It is not a de Polignac number, because 65647145275 - 2¹ = 65647145273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65647145273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12744444 + ... + 12749593.

Almost surely, 2^65647145275 is an apocalyptic number.

65647145275 is a deficient number, since it is larger than the sum of its proper divisors (16545633237).

65647145275 is a wasteful number, since it uses less digits than its factorization.

65647145275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25494150 (or 25494145 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 52.

The spelling of 65647145275 in words is "sixty-five billion, six hundred forty-seven million, one hundred forty-five thousand, two hundred seventy-five".